noun
plural bolts
[count] :a bright line of light that appears in the sky during a storm :a flash of lightning
[count] a sliding bar that is used to lock a door or window
the part of a lock that is moved by a key - see also dead bolt
[count] :a long, round piece of metal that has a wider part at one end and is like a screw at the other end
A bolt and a nut are used together to hold something in place.
[singular] Brit :the act of running or moving quickly and suddenly in a particular direction or to a particular place
[count] :a large roll of cloth
[count] :a tube-shaped metal part inside a gun
[count] :a short, heavy arrow that is shot from a type of weapon (called a crossbow) used mainly in the past
If you have shot your bolt, you have done or used everything possible to try to do something, and there is nothing more that you can do.
verb
bolts; bolted; bolting
[no obj]
a always followed by an adverb, adjective, or preposition :to move or go very suddenly and quickly from or to a particular place, position, or condition
to run away suddenly and quickly
US :to suddenly leave a political party, team, etc. [no obj]
to fasten (something) tightly :to lock (something) with a bolt [+ obj]
[+ obj] :to attach (something) firmly :to attach (something) with a bolt
[+ obj] :to eat (food) quickly
adverb
with the back in a very straight position